Truck.



G. P. TAYLOR.

TRUCK.

APPLICATION rum] JUNE 5 1912 Patented Dec. 15. 1914.

2 SHEBTS-SHEET l.v

fizir caves G. P. TAYLOR.

TRUCK.

APPLICATION FILED JUNE 5,

Patented Dec. 15, 1914.

UNITED STATES PATENT oEE1cE.

GEORGE P. TAYLOR, F HOLYOKE, MASSACHUSETTS. ASSIGNOR. BY MESNE ASSIGN- MENTS, TO HERBERT 'W. COWAN, J. LEWIS WYCKOFF. AND EDWARD IN. WHITE,

TRUSTEES.

TRUCK.

Patented Dec. 1 5, 1914.

Application filed June 5. 1912. Serial No. 701,736.

' T 0 all 14']: mn it may concern:

Be it known that I, GEonoE l. Tavnoa. a citizen of the United States. residing at llolyolce. county of Hampden. State of Massachusetts, have invented certain new and useful Improvements in Trucks, of which the following is a clear. full, and exact description.

This invention relates to improvements in trucks such as are used in warehouses,

factories and stores for the purpose of conveying goods or materials from one place to another.

()ne of the objects of the present invention is to provide a tag 19 mechanism so arrangedandconstructe t atitwill support and hold the elevating platform of the truck in elevated position, and to provide a handle or tongue for moving the truck and which is adapted to control the lowering of the load through the medium of the toggle mechanism when the latter is unlocked or released.

A further object of the invention is to provide manually operated trip mechanism operated independently of the toggle mechanism and handle or tongue which is adapted to release or break the. toggle so that when the toggle mechanism is subjected to the weight of the load on the platform of the truck. the pl'utformwill lower to normal position undelthe control of the handle.

The truck is of that class usually known as an elevating truck; which is adapted to be pushed under an elevated support for a load and to be raised on the principle of a wagon-jack to raise the loud and its support from the floor so that the same may becon' veyed to some other point and deposited by the lowering of the movable platform of the truck.

Other objects of the invention are to provide a practical and eflicient truck for the purposes similar to those mentioned.

These being among the objects of the present invention, the same consists of certain features of construction and combinations of parts to be hereinafter described truck is ltiwered and the handle or tongue raised; Fig. 2 is a side elevationof the truck showing the same parts in position for supporting a load on the truck; Fig. 3 is a plan view of the truck, the parts being in the position shown in Fig. 2; Fig. -1 IS a 1011- gitudinal section on the, line 4-4 Fig. 3; Figs. 5 and 6 are detail views'of a suitable trip mechanism; Fig. 6 being a section on the line 66 Fi 4; Fig. 7 is a modification showing a stop evice for the toggle.

Referring to Figs. 1 to 4 inclusive, the truck proper or base 1 comprises a body 2 which is provided with a pair of wheels 3+3 jonrnaled thereon at one end. There is supported upon the body 2 a platform 4, said platform being so combined with the base and so cooperating tl'ierewith that it forms a supporting part of the truck, it bein the art on which the load is to he carried. Laid platform 4 is provided at that end of the truck opposite the wheels 3 with a bracket 5 which carries at its upper end a sleeve 6 in which is swiveled the spindle T of a fork 8 within which is mounted on axle 9 a caster-wheel 10. The said axle 9 is extended suificiently at each side of the caster-wheel so that the bifurcations 11 of a handle or tongue 12 may have bearing on said axle, which therefore constitutes a pivot on which to swing the handle from its upstanding position, when the platform of the trunk is lowered. to its lower or horizon tal position to raise the platform. or vice versa.

The platform 4 may be raised or lowered on the body 2 of the truck in any suitable manner. For this purpose there are pre erably provided coiiperating inclines, which as shown consist of upwardly and backwardly extending slideways 13, 14, 15 the slide-way 13 being located near the handle end of the truck. and the slideways 14, 15 being located at the opposite end, one at each side of the truck body. Resting upon and guided on these slide-ways are slides 13', 14 and 15 which are located on the underside of the platform 4 and are arranged so that the slide 13 may be guided on the slideway 13, and the slides 14 and if) on the slide-ways l4, 15. To prevent the tilting of either end of the platform and log 16 which extends through a slot 13 in slide-way 13 and carries a cross-pin 17, the ends of which are guided on the underside of said slide-way; while the other end of the platform 4 carries downwardly projecting lugs 18 having side projections or studs 19 which engage with inclined flanges 20 at the rear end of the truck body. It is clearly obvious that any other suitable means for guiding the platform upwardly and downwardly relatively to the truck body may be em loyed.

toggle mechanism for raising the platform is employed herein as in my (to-pending application filed July 1, 1911, Serial No. 636,400. but there are certain in'iprovements therein and iii the parts which cotiperate with the same which will uhw be described. The toggle mechanism is preferably duplicated at eachside of the truckand comprises links 21. 22 which are res ectively pivoted at their rear ends to the sli e blocks 14, 15. at 23, while the forward ends of said links ar pivoted at 24 to the yoke or toggle operating member Said yoke or member 25 is fulcrumed or tilted on a pivot 26 and slraddles the bracket 5, while it is provided w th short arms or link members 27, 2? between which and the links 21, 22. the pivots 24 are raised. It will he seen that the handle or tongue 12 extends through the yoke or toggle operating member 25 so that it may be lowered and at the same time not to lower the yoke 25. The proportions of the links 21. 29 and 2T. 27" and the location of the pivots 23, 24 and 26 to each other are such that the toggle is rendered effective to hold the platform in raised position as shown in Fig. 2 when the pivots 24 pass upwardly beyond, a line extending directly between the pivots 23 and 26, so that the toggle is locked. In this position of the parts a lug or too 30 which extends for wardl rom one of the links 21, 22 is broug t in contact with the pivot 26 which forms an abutment as shown in Fig. 2 so that the toggle holds the load raised.

Briefly described, the operation of the parts so for specified is as follows: The truck is pushed underneath the raised suport which carries the goods or material to e transported. and the handle then being in upright position as shown in. Fig. 1, it is pulled forwardly and lowered, which action also lowers the yoke or toggle operating member 25. This causes the longer extended links 21, 22 to push against the platform 4 which results in raising the load, and

its support from the floor. When the handie 12 and the yoke 25 have been depressed sufiiciently to move the pivots 24 cross a line directly extending between the ivots 23, 26, the toggle will ,be rendered efl ctive for th purpose of lockin the platform and landing the load in raise position so that it may be transported. Of course at this point the too 30 comes into play and is brought in contact with the pivot 26 to prevent re action of the toggle mechanism. In the position of the parts shown in Fig. 2, when the load is raised and held above the floor by the truck, the handle 12 is free to be moved in any direction rela1i\ clv to the yoke or toggl operating member The handle may be thus moved because oi. its swivel connection with the truck and its pivotal connection at 9, so that. the O)8I'fll3(ll has perfect control of the truck and can guide and move the same to any point of the floor or surface along which the load is to be tru nsported.

One of the important features of this invention is the fact that the load and the toggle operating member or yoke 25 is made use of for the purpose of controlling the lowering of the load by means of the handie. This is brou ht about as follows (see Figs. 5 and 6): t one side of the truck there is a manually operated tripping mechanism which comprises a trcadle 31, which is pivoted at 32 to an arm or bracket 33, fixed to one side of the extended links 21, 22. Said treadle is provided with a nose or lug 34 which comes in contact. with a sto 35 on said arm so that the treadle is held stiff against a certain downward movement relative to Said arm. but is permitted to make use of said pivot, as a lever in acting u on the adjacent pivot 26 a fulcrum. or this purpose the said treadle is provided with a lever extension 36 which, when the handle and the yoke are lowered. is brou ht in contact with said opposite pivot. '26 so is hit upon pressing the foot upon the treadle, the action is such that the connecting pivot 24 oi the toggle is brought past the line directly connecting the pivots 23, 26 in the position shown in Fig. 2. This breaks the to gle by a sli ht pressure of the foot, and the cod impose. on the platform thereupon automatically acts upon the mechanism to return the parts to normal position shown in Fig, I, said parts being then in position to he moved from underneath of a load or to he moved under a. load. it will furthermore be seen that by the use of the described trip mechanism the toggle devices are set so that they may be automatically noted 11 ion by the load, and the operator of the truck can control the lowering of the load in a desired manner and the handle and yoke will not he swung up forcibly. A slight modification of the stop device which holds the tug gle effective to lock the load in raised position is shown in Fig. 7 and comprises a swinging member 36 which is pivoted on the pivot 26 and rests upon the links 21, 22 at each side of the truck. It need only rest upon one of said links if desired. Said swinging member has an upwardly extend ing stop 38 which is so located relatively to the socket or sleeve (5. in which the rasterwhcel is swiveled that when the links are brought up to raised position as shown in Fig. 2, the said stop \vill'strike the said socket or sleeve and thus the load cannot carry the toggle pivot 24 farther than is desirable to elfect the intemled pu pose. Rollers 39 on yoke 25, El and 4. redu e the friction between the yoke and handle.

Obviously further modifications can he made in the. construction of the truck described and claimed without departing from the spirit of the invention.

What I claim as new is 1. In a truck. the combination of a base. an upwardly movable platform thereon. a toggle connecting said base with said platform, and adapted to be maintained in a position to lock said platform raised. a toggle member for operating said toggle. manually operated means movable relatively to 'said toggle operating member. and adapted to, actuate said. member. aml tripping means independent of said manually operated means to trip and release said toggle t lower said platform and comprising a foot treadle extending to one. side of said base in position for convenient acre s by the foot.

2. ln truck. the combination of a base. an upwardly movable platform thereon. a toggle connecting said base with said platform; and adapted to be maintaine in a position to lock said platform raised. a tog gle member for operating said toggle. manu ally operated means movable relatively to said toggle operating member. and (-ompris; ing a handle or tongue pivoted to said base. and adapted to acutate said member. and tripping moans iiulependent of said manually operated means to trip and release said toggle to lower said platform and comprising a foot-treadle extending to one side of said base in position for convenient access by the foot, said toggle member permitting the handle to control the lowering of the load throughout.

In a trnclr. the combination of a support. a toggle )ivotally connected therewith, a t ggle member for operating said toggle in one direction. and a toggle stop consisting of a lug or toe projecting from said toggle and arranged in cooperative relationship to the connecting pivot between said toggle and said support. and controlled by said toggle when the toggle is operated. saidpivot constituting an abutment for said stop.

4. In a truck. the combination of an upwardly movable platform. a handle. an up right swivel connecting said handle with the truck, means operable by said handle for raising said platform. said handle being free to be moved upon said swivel laterally of said means but being free to operate on said means at will. and a manually controlled lever combined with said parts and operable independently of said handle. for tripping said handle operated means when the latform is raised and to )ermitsaid hand e to control the lowering o the load through the mr Q-"um of said handle 0 erated means.

5. In a truck. the com ination of an upwardly movable platform. a handle or tongue suitably supported relative to said platform. said handle being freely movable in any direction relative to said platform. means operable by said handle for raising said platform by lowering said handle, said handle being free to be moved relative to said means when said platform is raised, and a manually controlled lever combined with said parts for tripping said handle operated means to permit said handle to control the lowering of the load through the medium of said handle operated means.

6. In a truck, the combination of a base, a movable platform. inclined coacting guides, on said base and platform. adapted to guide Said platform upwardly and longitudinally. a toggle connected with said base near one end of said platform and comprising an extended link connected with the other end of said platform, a toggle member for operating said toggle to raise said platform, a handle or tongue pivoted to said base and adapted to actuate said member, and means independent. of said handle or tongue to re ;lcasc' said toggle to permit said handle to control the lowering of the load.

7. In a truck. the combination of a base, a movable platform, a toggle connected with said basp near one end of said platform and comprislng an extended link connected with the other end of said platform, means associated with said base and platform and coacting with said toggle to raise said plat form from said base. a toggle member for operating said toggle to raise said platform, a handle or tongue pivoted to said base and adapted to actuate said member, and means independent of said handle or' tongue to release said toggle to permit said handle to control the'lowering of the load.

8. Tu a truck. the combination of a support. a toggle connected therewith, a platform, operable by said toggle. said toggle extending in the direction of the length of the truck when straightened out. a toggle member for operating said toggle in one di rection relatively to said support, a movable toggle stop carried by and controlled by said toggle when the toggle is operated. and an abutment. located on said support between the extreme outer ends of said toggle for en gagement, laterally by said stop when the middle pivot of said toggle passes beyond a straight; line extendi g between the end pivots thereof. said ggle-stop being laterally disengageable from said abutment. at will. by the more breaking of said toggle.

9 In tltttli, the combination of n support. a toggle connected therewith, a platform operable by said toggle, a toggle member for operating said toggle in one direction relathely to said support, a movable toggle stop consisting of :1 lug or too projecting from said toggle and controlled by said toggle when the toggle is operated. and an abutment for said stop, provided by an end pivot Oi Silitl toggle.

il in a truck, the combination of a slippvrt. a toggle connected therewith, a plat form operable bysnid toggle said toggle exlending in the direction of the length of the [liii'h hen straightened out. a toggle member for operating said toggle in One di- ]L"[itlll relatively to said support, a movable t ggle-stop consisting of it lug or toe ro je ting from said toggle at the interme iate pivot thereof, and an abutment, located on said support for engagement laterally by said stop when the middle ivot of said tog gle passes beyond a straig t line extending between the end pivots thereof, said lug or toe being laterally disengageable from said abutment at will. by the mere breaking of said toggle. 11. In a truck, the combination of a support, a tog le connected therewith, a, platform, ()[K'h le by said toggle, a toggle memher for operating said toggle in one direction relatively to said support, a movable toggle stop carried by and controlled by said toggle when the toggle is operated, and an abutment for said stop, provided by an end pivot of said toggle.

Signed at Holyoke, Massachusetts, this first day of June, 1912.

GEORGE P. TAYLOR. Witnesses G. A. WILENB, A. L. LEWIS.

Correction in Letters Patent No. 1.121.052

9. In a truck, the combination of a support, a toggle connected therewith, a platform operable by said toggle, a toggle member for operating said toggle in one direction relatively to said support, a movable toggle stop consisting of :1 lug or too projecting from said toggle and controlled by said toggle when the toggle is operated,v and an abutment for said stop, provided by an end pivot of said toggle.

10. In a truck, the combination of a support. a toggle connected therewith, a plat :iorni operable lay-said toggle. said toggle extending in the direction of the length of the truck when straightened olltQa toggle. member for operating said toggle in one direction relatively to said support, a movable toggle-stop consisting of-a lug or toe ro jet-ting from said toggle at the interme iate' pivot thereof, and an abutment, located on said support for engagement laterally by [en-AL] said stop when the middle 'gle passes beyond a straig t line extending between the end pivots thereof,-said lug 01' toe being laterally disengageable from said abutment at will. by the more breaking of said toggle.

pivot of sad tog 11. In a truck, the combination of a sup- I port, a toggle connected therewith, a-plat form, operable by-said toggle, a toggle memher for operating said toggle 1n one direc- \Vitnesses G. A. WILENS, A. L. Lawrs.

It is hereby certified that in Letters Patent No. 1,121,052, granted December 15, 1914, upon the'application of George P. Taylor, of Holyoke, Massachusetts, for an improvement in Trucks, an error appears in the printed specifieation'requiring correction as'follows: Page 1, line 88, for the word, trunk road truck; and that the said Letters Patent should be readwith this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 26th day of January, A. D., 1915.

R. Acting amnmiss'ioner of Patents,

It is hereby certified that in Letters Patent No. 1,121,052, granted December 15, 1914, upon the application of George P. Taylor, of Holyoke, Massachuset; for

an improvement in Trucks, an error appears in the printed specificationrequit'ing correction as follows: Page 1, line 88, for the word trunk read truck; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 26th day of January, A. D., 1915.

R. F. WHITEHEAD,

Acting Commissioner of Patents.

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